Botong Huang created YARN-6730:
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Summary: Make sure NM state store is not null consistently
Key: YARN-6730
URL: https://issues.apache.org/jira/browse/YARN-6730
Project: Hadoop YARN
Issue Type: Task
Reporter: Botong Huang
Assignee: Botong Huang
Priority: Minor
In the NM statestore for NM restart, there are a lot of places where we check
if the stateStore != null. This is true in the existing codebase too. Ideally,
the stateStore should never be null because we have the NullStateStore
implementation and we should not have to perform so many defensive checks.
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